In the structure of DNA,a purine base of one | vedclass

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(B) In the $DNA$ double helix structure,the two strands are held together by hydrogen bonds between the nitrogenous bases.According to Chargaff's rule

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Weak hydrogen

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(B) In the $DNA$ double helix structure,the two strands are held together by hydrogen bonds between the nitrogenous bases.According to Chargaff's rules and the Watson-Crick model,a purine base (Adenine or Guanine) always pairs with a pyrimidine base (Thymine or Cytosine) on the opposite strand.Specifically,Adenine $(A)$ pairs with Thymine $(T)$ via two hydrogen bonds,and Guanine $(G)$ pairs with Cytosine $(C)$ via three hydrogen bonds.These hydrogen bonds are relatively weak compared to covalent bonds,which allows the strands to separate during processes like replication and transcription.

In the structure of $DNA$,a purine base of one nucleotide is linked to a pyrimidine base of the opposite nucleotide by which type of bond?

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